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# Calcus help watch

1. Can someone tell me how to work out part C please
2. (Original post by Msjaygaab)

Can someone tell me how to work out part C please
You've found dy/dx, haven't you? Equate it to zero and solve for x, then plug it back into the equation of the curve to find the corresponding y.
3. Yeah I got 1-32x^-5=0
How do I solve that for X?
4. (Original post by Msjaygaab)
Yeah I got 1-32x^-5=0
How do I solve that for X?
Assuming that that's correct:

5. (Original post by Msjaygaab)
Yeah I got 1-32x^-5=0
How do I solve that for X?
recall that and get one term on each side of the equation.
6. Stationary/minimum/maximum points occur when the derivative equals zero because imagine drawing a tangent at the minimum point- the gradient is 0 because it's a horizontal line.
7. is there any room for me?

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Updated: February 12, 2016
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